stephen avery is guilty. >> i'm innocent. >> the story gripped the nation in a serious making a murderer. >> so many americans have learned about it. >> it's being heard by people around the world. >> steven avery and his nephew convicted of murder and the haunting killing of a young photographer. but where that really innocent? >> i didn't do it. somebody is doing a good job on me. >> did you have any kind of vendetta against steven a very? >> absolutely not. >> for the first time on television, a lead investigator defenses interrogation, which led to a conviction overturned. >> this was seen by many as a false confession. >> i feel it was a real confession. >> we just need you to be honest with us. >> right from wrong. >> those officers wanted that information in the worst way and they got it in the worst way. >> the prosecutor fights back with an explosive book. >> people are going to hear the other side of the story. >> and stephen evers high powered new attorney. >> do you think you have new evidence that could free stephen avery? >> we do. ♪ ♪ ♪ ♪ ♪ ♪ >> welcome to dateline. it's a

. >> how do you feel that so many people think stephen avery is innocent?n? what's happening is wrong, the evidence is beyond overwhelming. stephen avery is guilty. >> i'm innocent. >> the story gripped the nation in a serious making a murderer. >> so many americans have learned about it. >> it's being heard by people around